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Finding the Fourth Proportional to 85,501.95, 128,289.81 and 46,051.17

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Solution

The fourth proportional to 85,501.95, 128,289.81 and 46,051.17 is: 69,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,501.95 : 128,289.81 = 46,051.17 : x
  2. Step 2: Convert to fraction form
    85,501.95/128,289.81 = 46,051.17/x
  3. Step 3: Cross multiply
    85,501.95x = 128,289.81 × 46,051.17
  4. Step 4: Simplify right side
    85,501.95x = 5,907,895,849.58
  5. Step 5: Solve for x
    x = 5,907,895,849.58/85,501.95
  6. Step 6: Final answer
    x = 69,096.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.